Honey collection is currently capped at 1/4 of the empty capacity of the stage. 

Currently working to fix winter. For now, I'm using the interp function to get predicted honey, but I've capped the stored honey at 1/4 of the vacant cells available that day.  This allows us to see what is going on reasonably well- honey IS being consumed, but there is still this weird jump in collection. For now, I'm letting it go, and working on not having them all die out in winter.
Winter is pretty simplified, no starvation if we assume adult bees don't eat pollen

This is a biological issue- do we need to make sure that there are sufficient pollen stores for the winter? I think that the answer is no, I'm pretty sure Wanyi settled on no. Need to correct: all adult bees should be house, not nurse, in the winter.
Initial winter dynamics fixed

There was some artificial aging of bees when they were going into winter in the initial winter conditions, this has been fixed.
winter is fixed. All winter bees are house bees now. Still working on figure out what's wrong with second season- very jagged, run out of room, and population collapses at beginning.

But we still have not enough bees to start new hive next season, it seems like. 
I don't understand how the population recovers from its collapse in the second March.
It seems like I should have higher survivorship through the winter, with the settings we have now.
Merge pull request #4 from aipritsker/fixing-winter-dynamics

Fixed winter dynamics- though still highly simplified survivorship.